"The Requested operation in invalid. Server response: An error has occured."
It seems that all Entities are down again. We will be unable to continue developing in this enivornment, until Microsoft provides tools for logging and troubleshooting the CDS. We must find a more stable solution.
I have been trying to leverage the CDS as well, but it is really painful to create entities, and have the system lock-up, while in the middle of the creation. I cannot erase entities which are half baked due to an error (without knowing what the error is) that happened while creating the entity. I cannot edit these entities, so each time another name has to be used to create a duplicate (or triplicate) of the entity that is half baked but still in the database.
I agree with jsarnold that Microsoft really needs to provide an environment that is more stable / allows us to leverage the CDS. I suppose that a lot of developers are shying away from using it because of these instabilities, and in the end Microsoft doesn't really get a lot of feedback on the product itself (appeal, improvements, ...) because of issues that are very counter productive. I would not classify this as ideas, these are more necessities for people that are willing to explore new features, up to a certain "pain" threshold.